How to render an animation of a scene in right viewpoint mode? i.e. so it appears in "2D" and from the right side
The rendered result will always be the camera view which you can access by clicking 0 on the numpad or View &gt; cameras &gt; Active camera.
If you want the Camera's FOV to match with the left image, simply search for &quot;align camera to view&quot; in the search dialog. Since the left image is in ortographic view, you can change your camera to ortographic in the camera settings under lens &gt; type &gt; ortographic.
If something is purple, this usually means that an image texture is missing (renamed or moved to another folder, deleted etc.). Make sure that the cylinder materials have the correct image textures loaded. It could also be the case that you use an HDRi to light your scene which cannot be found.
You can share your .blend file using https://blend-exchange.giantcowfilms.com/ and following the instructions onscreen.